干旱区生态环境知识资源中心(Arid): Assessment of impact of water diversion projects on ecological water uses in arid region

Arid

DOI	10.3882/j.issn.1674-2370.2013.02.001
	Assessment of impact of water diversion projects on ecological water uses in arid region
	Shang, Song-hao; Wang, Hui-jie
通讯作者	Shang, SH
来源期刊	WATER SCIENCE AND ENGINEERING
ISSN	1674-2370
EISSN	2405-8106
出版年	2013
卷号	6 期号:2 页码:119-130
英文摘要	In arid regions, large-scale water diversion from rivers leads to significant changes in river flow regimes, which may have large impacts on ecological water uses of river-dependent ecosystems, such as river, lake, wetland, and riparian ecosystems. To assess the integrated impact of water diversion on ecological water uses, we proposed a hierarchy evaluation model composed of four layers representing the evaluation goal, sub-areas of the influenced region, evaluation criteria, and water diversion schemes, respectively. The evaluation criteria for different types of ecological water uses were proposed, and the analytical hierarchy process was used for the integrated assessment. For a river ecosystem, the percentage of mean annual flow was used to define the grade of environmental flow. For a lake ecosystem, water recharge to the lake to compensate the lake water losses was used to assess the ecological water use of a lake. The flooding level of the wetland and the groundwater level in the riparian plain were used to assess the wetland and riparian ecological water uses, respectively. The proposed model was applied to a basin in northern Xinjiang in northwest China, where both water diversion and inter-basin water transfer projects were planned to be carried out. Based on assessment results for the whole study area and two sub-areas, an appropriate scheme was recommended from four planning schemes. With the recommended scheme, ecological water uses of the influenced ecosystems can be maintained at an acceptable level. Meanwhile, economical water requirements can be met to a great extent.
英文关键词	arid region water diversion project environmental impact assessment ecological water use environmental flow riparian forest analytic hierarchy process
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000219771400001
WOS关键词	FLOODPLAIN FOREST ; DECISION-MAKING ; RIVER ; FLOW
WOS类目	Water Resources
WOS研究方向	Water Resources
来源机构	清华大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/330455
作者单位	[Shang, Song-hao; Wang, Hui-jie] Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China; [Wang, Hui-jie] Yellow River Engn Consulting Co Ltd, Zhengzhou 450003, Henan, Peoples R China
推荐引用方式 GB/T 7714	Shang, Song-hao,Wang, Hui-jie. Assessment of impact of water diversion projects on ecological water uses in arid region[J]. 清华大学,2013,6(2):119-130.
APA	Shang, Song-hao,&Wang, Hui-jie.(2013).Assessment of impact of water diversion projects on ecological water uses in arid region.WATER SCIENCE AND ENGINEERING,6(2),119-130.
MLA	Shang, Song-hao,et al."Assessment of impact of water diversion projects on ecological water uses in arid region".WATER SCIENCE AND ENGINEERING 6.2(2013):119-130.